Update dependency squizlabs/php_codesniffer to ^3.8.1

Author: renovate[bot]

composer.json

@@ -28,7 +28,7 @@
     "psalm/plugin-phpunit": "^0.18.4",
     "roave/backward-compatibility-check": "^8.6.0",
     "roave/infection-static-analysis-plugin": "^1.33.0",
-    "squizlabs/php_codesniffer": "^3.7.2",
+    "squizlabs/php_codesniffer": "^3.8.1",
     "thecodingmachine/safe": "^2.5.0",
     "vimeo/psalm": "^5.16.0",
     "wyrihaximus/coding-standard": "^2.14.0",